Linear actuator



FIG. 1 is a perspective front top view;

FIG. 2 is a perspective rear bottom view;

FIG. 3 is an elevational left side view;

FIG. 4 is a top plan view;

FIG. 5 is an elevational right side view;

FIG. 6 is a bottom plain view;

FIG. 7 is an elevational rear end view;

FIG. 8 is an elevational front end view; and,

FIG. 9 is a perspective front top view with an extension rod in an extended position. 

The ornamental design for a linear actuator, as shown and described. 